Cultivator.



w. P; HARPER.

CULTIVATOR.

APPLICATION FILED ozc. 11. 1914.

Patented May 11,1915.

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CULTIVATOR.

APPLICATION FILED DEC. 11. m4.

Patented May 11, 1915.

3 SHEETS-SHEET 2.

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fi ATTORNE Y W. P. HARPER.

CULTIVAT OR. I APPLICATION FILED DEC. 17. 1914.

Patented May 11, 1915 3 SHEETS-SHEET 3.

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WIT/V15 9355 ATTORNEY Q v an STATES PATENT onrion WILL r. HARPER, hrAIVBILENE, KANSAS, ASSIGNOB or ONE-HALF T0 JOHN s.

. DUFFY, or ABILENE, ansas.

' CULTIVATOB.

means,

Specification of Letters Patent.

Patented May 11, 1915.

Application filed December 17, 1914. Serial No. 877,684.

T0 all whom it may concern;

Be it known that 1, WILLIAM P. HARPER, a citizen of the United States,residing at Abilene, in ,the county of Dickinson and State of Kansas,have invented certain new and useful Improvements in Cultivators, ofwhich the following is a specification.

My invention relates to improvements in cultivators. Y

The object of my invention is to provide a cultivator in which theshovels may be quickly adjusted to and held in different positions.

Another object of my invention is to provide a cultivator of novelconstruction and with which a single operator or driver maysimultaneously operate a plurality of cultivator units respectivelydrawn by a plurality of teams of draft animals.

Qther novel features of my invention are hereinafter fully described andclaimed.

In the accompanying drawings, which illustrate the preferred embodimentof my invention, F igure 1 is a plan view of my improved cultivatorhaving a plurality of cultivator units. Fig. 2 is an enlarged sideelevation of the same. Fig. 3 is a rear elevation of the same, partlybroken away. Fig. 4 is an enlarged vertical sectional view on the line44 of Fig. 1. Fig. '5 is an enlarged vertical sectional view onthe line55 of Fig. 1.

Similar reference characters designate similar parts in the differentviews. I

1 designates each of two horizontal main frames, which are connectedtogether,

A preferably flexibly, and at their adjacent ends by plates 2 and 3, theends of which are pivoted to the respective main frames 1. The mainframes 1 are respectively pivoted by loops 4 to the upper horizontalportions of two arched axles 5, which are respectively secured totongues 6 which carry the usual draft appliances comprising doubletrees7 and swingletrees 8.

The rear edges of the main frames 1 are respectively supported on cams 9secured to a horizontal rock shaft 10, which is pivoted in a wheeledsupplemental support, comprising an upright standard 11, Fig. 3, ofinverted U form, the lower ends of the arms of which have carryingwheels 12 respectively rotatably mounted thereon, the upper end beingslidable in the plate 3. A

drivers seat 13 may be supported by the supporting standard 11.

Secured to the rock shaft 10 is a lever 14,

which is'accessible to'the driver occupying the seat 1.3, and which haspivoted to it a bell crank lever 15, connected to a rod 16,

which in turn connects with and is adapted in the following manner: Eachshovel ham? :0

comprises t\ vo reversely disposed horizont. beams 19, WlllCllareconnected with each other and secured to a transverse bar 20 to whichis secured the lower end of a vertical bar 21, the upper end of which ispivoted to the rear ends of two draft bars 22, .WhlCll in turn havetheir forward ends pivoted to the adjacent axle 5. The draft bars 22serve to.draw the shovel frames forwardly as the cultivator moves along.

For .supporting the shovel frames, the following described mechanism isprovided: An inverted V shaped member 23 has its lower ends formed intoeyes through which extends the adjacent cross bar 20. The apex of the Vshaped member 23 is secured to the lower end of a cable 24 which passesupwardly therefrom to and over a pulley 25, which is mounted on theadjacent main frame 1, thence passing horizontally to and around anotherpulley 26 to the lower end of a lever 27 to which the cable is secured.

The levers 27, of which two are provided,

are respectively pivoted to the main frames 1, and are provided eachwith a bell crank lever 28, which is connected by a rod 29 with a slidebolt 30, which is adapted to engage in the usual manner, a notched plateupstanding bars 32, which,'adjacent to their upper ends arerespectively'slidably mounted in brackets 33 which are secured to themain frames 1, having respectively slidably and horizontally mountedtherein bolts 34,

- ried by the bolts 34. The other sets of ends of the springs 36respectively bear against the brackets 33, the tension of the springsbeing such as to normally force the bolts into position for' enteringthe adjacent notches,-for supporting the shovel frames in either theraised position, when the bolts are in the lower notches 35, or in thelower position, when the 'bolts are in the upper notches, as shown inFigs. 1, 2, 3, 4 and 5.

\Vith the bolts 34 engaged with the bars 32, the shovel frames will beraised or lowered when the main frames 1 are vertically swung by meansof the lever 14. For withdrawing the bolts 34 from the notches 35, saidbolts are respectively secured to cables 38, which pass therefrom to andaround pulleys 39, and thence around pulleys 40 secured to the mainframes 1 to the lower ends respectively of two levers 41 respectivelysupported pivotally onthe mainframes 1, the cables 38 being securedrespectively to said levers 41. Pivoted respectively to said levers 41are two bell crank levers 42 which are respectively secured to rods 43,which in turn are respectively secured to slide bolts 44 adaptedrespectively to engage notched plates 45 respectively secured to themain frames 1. By properly swinging the levers 41, the bolts 34 may bereleased from the bars 32, after which the levers 27 may be swung toraise the shovel frames and bars 32, or to permit them to lower bygravity. Or by swinging the levers 27, with the bolts 34 engaged withthe bars 32, the shovel frames may be tilted from the horizontal topermit either the forward or rear shovels 46, carried by the shovelframe beams 19, to be relatively raised or lowered.

The driver at any time may, by operating the lever 14, permit the mainframes to lower, thereby, when the bars 32 are engaged by the bolts 34,forcing the shovel frames downwardly to cause the shovels 46 to enterthe earth more deeply. When not in use the shovels may be raised clearof the ground by releasing the bolts 34, operating the levers 27 to liftthe shovel frames to the proper height, and then permitting the bolts 34to enter the lower notches 35 in the bars 32, thereby releasablysupporting the shovel frames in the elevated position. By means of thepivotal connection of the shovel frames with the axles 5, through theintermediacy of the draft bars 22, the shovel frames may be bodilyraised while retaining a horizontal position.

I do not limit my invention to the structure shown and described, asmodifications,

within the scope of the appended claims, may be made without departingfrom the spirit of my invention.

Having thus described my invention, what I claim and desire to secure byLetters Patent, is I 1. In a cultivator, the combination with an axle,of a main frame pivoted thereto and partly supported thereby, a wheeledsupplemental support relative to which the main frame is verticallyadjustable, a horizontal rock shaft pivoted in said'supplementalsupport, a cam secured to said rock shaft and supporting said mainframe, a

lever for swinging said rock shaft, means for releasably holdingthelever in different positions to which it may be swung, a shovel frame,and means carried bythe main frame for supporting and verticallyadjusting the shovel frame.

2. In a cultivator, the combination with an axle, of a main framepivoted thereto and partly supported thereby, a wheeled support relativeto which the main frame is vertically adjustable, a horizontal rockshaft pivoted to said support, a cam secured to said rock shaft andsupporting the main frame, a lever for rocking said rock shaft,

means for releasably holding the lever in different positions to whichit may be swung, a shovel frame, a draft bar pivoted to the axle and tothe shovel frame, and means carried by the main frame for supporting andvertically adjusting the shovel frame.

3. In a cultivator, the combination with an axle, of a main framesupported thereby, a shovel frame, a bar connected to the shovel frameand vertically movable relative to the main frame, releasable means forlocking the said bar in different positions relative to the main frame,a lever carried by the main frame, means actuated by said lever forlifting the shovel frame, and a draft bar pivoted to the axle and to theshovel frame.

4. In a cultivator, the combination with an axle, of a main framepivoted thereto and partly supported thereby, a shovel frame, a barconnected to the shovel frame and vertically movable relatively to themain frame, means for releasably locking said bar in diflerent positionsrelatively to the main frame, a lever, means actuated by said lever forlifting the shovel frame, a draft bar pivoted to the axle and to theshovel frame, a wheeled supplemental support relative to which the mainframe is vertically adjustable, and manually operated means forvertically adjusting and supporting the main frame upon the supplementalsupport.

-5. In a cultivator, the combination with an axle, of a main framepivoted thereto and partly supported thereby, a shovel main frame, meansfor releasably locking the said bar in different positions relatively tothe main frame, a lever, means actuated .by the lever for lifting theshovel frame, a

draft bar pivoted to the axle and to the shovel frame, a wheeledsupplemental support relative to which the main frame is verticallyadjustable, a rock shaft pivoted to the supplemental support, a camcarried by and rotatable with said rock shaft and adapted to support themain frame, and means for rocking the rock shaft and for retaining it indifferent positions.

' 6. In a cultivator, the combination with two axles and carrying wheelsmounted thereon, of two main frames respectively pivotally connected tosaid axles, two shovel frames respectively pivoted to said axles andrespectively supported by said main frames, a wheeled supplementalsupport, and means carried by said supplemental support forsimultaneously vertically swinging and supporting said main frames.

In a cultivator, the combination with two axles and carrying wheelsmounted thereon, of two main frames, two shovel frames respectivelysupported by said main frames, two draft bars respectively pivoted tosaid axles and to said shovel frames, a wheeled supplemental support,and means carried by said supplemental support for simultaneouslyvertically swinging and supporting said main frames.

In testimony whereof I have signed my name to this specification inpresence of two subscribing Witnesses.

WILLIAM P. HARPER. Witnesses:

L. L. MERRIFIELD, O. W. HANCOCK.

